C # generates two-dimensional code (QR code) and barcode (bar code) _c# tutorials through Third-party components

How to generate two-dimensional code in C #, which we can implement directly from existing Third-party DLLs, lists several different build methods:

1): Through Qrcodenet (Gma.QrCodeNet.Encoding.dll) to achieve

1.1): First download the corresponding Third-party components through the VS2015 NuGet, as shown in the following figure:

1.2): The concrete generation of two-dimensional code method is as follows

private void Generateqrbyqrcodenet ()
{
Qrencoder qrencoder = new Qrencoder (ErrorCorrectionLevel.H);
QRCode QRCode = new QRCode ();
Qrencoder.tryencode ("Hello World.") This is Eric Sun testing ... ", out qrcode);
Graphicsrenderer renderer = new Graphicsrenderer (New Fixedmodulesize (5, Quietzonemodules.two), Brushes.black, Brushes.white);
using (MemoryStream ms = new MemoryStream ())
{
renderer. WriteToStream (Qrcode.matrix, Imageformat.png, MS);
Image img = image.fromstream (ms);
Img. Save ("E:/csharp-qrcode-net.png");
}

For more details, please refer to the following links:

Http://www.jb51.net/article/99215.htm

http://qrcodenet.codeplex.com/

Http://stackoverflow.com/questions/7020136/free-c-sharp-qr-code-generator

2): Through Thoughtworks.qrcode (ThoughtWorks.QRCode.dll) to achieve

1.1): First download the corresponding Third-party components through the VS2015 NuGet, as shown in the following figure:

1.2): The concrete generation of two-dimensional code method is as follows

private void Generateqrbythoughtworks ()
{
Qrcodeencoder encoder = new Qrcodeencoder ();
Encoder. Qrcodeencodemode = Qrcodeencoder.encode_mode. byte;//encoding Method (Note: Byte can support Chinese, alpha_numeric scan is the number)
encoder. Qrcodescale = 4;//size (the larger the value generated two-dimensional code picture pixels higher)
encoder. Qrcodeversion = 0;//Version (note: setting to 0 is primarily to prevent errors that occur when the encoded string is too long)
encoder. Qrcodeerrorcorrect = qrcodeencoder.error_correction. m;//error parity, error correction (with 4 levels)
encoder. Qrcodebackgroundcolor = Color.yellow;
Encoder. Qrcodeforegroundcolor = Color.green;
String qrdata = "Hello world!" This is Eric Sun testing ... ";
Bitmap Bcodebitmap = encoder. Encode (Qrdata. ToString ());
Bcodebitmap.save (@ "E:\HelloWorld.png", imageformat.png);
Bcodebitmap.dispose ();
}

3): Through Spire.barcode (Spire.BarCode.dll) to achieve

1.1): First download the corresponding Third-party components through the VS2015 NuGet, as shown in the following figure:

1.2): The concrete generation of two-dimensional code method is as follows

private void Generateqrbyspire ()
{
barcodesettings bs = new barcodesettings ()
{
Data = ' This is QR code:h 2amk-z3v69-rtjzd-c7jau-will4 ",
Type = Barcodetype.qrcode,
toptextcolor = color.red,
Showchecksumchar = False,
Showtext = False
};
Generate the barcode based on the this.barcodecontrol1
barcodegenerator generator = new Barcodegenerator (BS); 
   image barcode = Generator. Generateimage ();
Save the barcode as an image
barcode. Save (@ "E:\barcode-2d.png");
}

1.3): Additional specific generated barcode method is as follows

private void Generatebarcodebyspire ()
{
barcodesettings bs = new barcodesettings ()
{
Data = "This is Barcode:h2amk-z3v69-rtjzd-c7jau-will4 ",
Showchecksumchar = False,
Toptextcolor = color.red,
Showtoptext = False,
Showtextonbottom = True
};
Generate the barcode based on the this.barcodecontrol1
barcodegenerator generator = new Barcodegenerator (BS); 
   image barcode = Generator. Generateimage ();
Save the barcode as an image
barcode. Save (@ "E:\barcode.png");
}

1.3): Appeal code We found that the generated barcode and two-dimensional code with watermark [E-iceblue], how to remove the watermark? Please see the following code

Barcodesettings.applykey ("...");

Please send mail to sales@e-iceblue.com for free to get the corresponding key value

For more details, please refer to the following links:

http://freebarcode.codeplex.com/

Http://www.e-iceblue.com/Knowledgebase/Spire.BarCode/Program-Guide/Programme-Guide-for-Spire.BarCode.html

Http://www.jb51.net/article/99222.htm

4): Through the Barcode Rendering Framework (Zen.Barcode.Rendering.Framework.dll) to achieve

4.1): First download the corresponding Third-party components through the VS2015 NuGet, as shown in the following figure:

4.2): The concrete generation of two-dimensional code method is as follows

private void Generatebarcodebyzen ()
{
Code128barcodedraw barcode128 = Barcodedrawfactory.code128withchecksum;
Image img = barcode128. Draw ("Hello World");
Img. Save ("E:/zenbarcode.gif");
}

4.3): Additional specific generated barcode method is as follows

private void Generateqrbyzen ()
{
Codeqrbarcodedraw qrcode = BARCODEDRAWFACTORY.CODEQR;
Image img = qrcode. Draw ("Hello world!", QRCode.) Getdefaultmetrics ());
Img. Save ("E:/zenqrcode.gif");
}

For more details, please refer to the following links:

http://barcoderender.codeplex.com/

5): Through Barcodelib (BarcodeLib.Barcode.ASP.NET.dll) to implement, download the corresponding DLL connection for http://www.barcodelib.com/asp_net/

5.1): The concrete generation of two-dimensional code method is as follows

private void Generateqrbybarcodelib ()
{
QRCode qrbarcode = new QRCode ();
Qrbarcode. Encoding = Qrcodeencoding.auto;
Qrbarcode. Data = "336699885522 This is Eric Sun testing.";
Qrbarcode. Modulesize = ten;
Qrbarcode. LeftMargin = 8;
Qrbarcode. RightMargin = 8;
Qrbarcode. TopMargin = 8;
Qrbarcode. BottomMargin = 8;
Qrbarcode. imageformat = System.Drawing.Imaging.ImageFormat.Gif;
Save QR Code Barcode image into your system
Qrbarcode.drawbarcode ("E:/csharp-qrcode-lib.gif");

5.2): Additional specific generated barcode method is as follows

private void Generatelinearbybarcodelib ()
{
Linear barcode = new Linear ();
Barcode. Type = barcodetype.code128;
Barcode. Data = "CODE128";
Other barcode settings.
Save barcode image into your system
Barcode.drawbarcode ("E:/barcode.png");
}

We are using the trial version (with watermark ...). , as well as paid genuine, please refer to the following links:

http://www.barcodelib.com/asp_net/

The above is a small series to introduce C # through Third-party components to generate two-dimensional code (QR code) and bar code (bar code), I hope to help you, if you have any questions please give me a message, small series will promptly reply to everyone. Here also thank you very much for the cloud Habitat Community website support!